PRIOR CONCURRENT THERAPY: Biologic therapy: No prior biologic therapy for current malignancy At least 5 years since prior gene therapy At least 1 year since prior interleukin-2 (IL-2) At least 1 year since prior sargramostim (GM-CSF) Concurrent filgrastim (G-CSF) allowed No concurrent gene therapy No concurrent GM-CSF No concurrent IL-2 No other concurrent angiogenesis inhibitors (e.g., thalidomide, cyclooxygenase-2 inhibitors (e.g., rofecoxib or celecoxib), interferon products, or angiotensin-converting enzyme inhibitors) Chemotherapy: At least 5 years since prior anticancer chemotherapy No prior chemotherapy for current malignancy No other concurrent chemotherapy Endocrine therapy: No prior endocrine therapy for current malignancy At least 1 year since prior tamoxifen No concurrent tamoxifen Radiotherapy: No prior radiotherapy for current malignancy Surgery: See Disease Characteristics Other: At least 1 year since prior experimental or investigational medications No other concurrent experimental or investigational medications